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COVER INFORMATION

Station: CEDUNA (Code Cd )
Experiment: VSOP observation of J0403+26 at 5 GHz
Exp. Code: w017c


Schedule Version: 2.00
Processed by SCHED version: Short term release of 12 Feb. 2001

PI: R.D.Dagkesamanskii

Address: PRAO ASC FIAN
Puschino
Moscow region, 142290 Russia


Phone: +7-0967-73-2780
EMAIL: rdd@prao.psn.ru
Fax: +7-0967-73-2482
Phone during observation:

Observing mode: VSOP, 5 GHz continuum, 128-2-2

Notes: Fringe finders : J0204+15, J0423-01, J0530+13




Schedule for CEDUNA (Code Cd ) Page 2
VSOP observation of J0403+26 at 5 GHz
UP: D => Below limits; H => Below horizon mask. blank => Up.
Early: Seconds between end of slew and start. Dwell: On source seconds.
Tapes: Drive, Index, Start footage / Direction, Head Group, End footage.
TPStart: Tape motion start time. Frequencies are LO sum (band edge).
----------------------------------------------------------------------------------------
Start UT Source Start / Stop Early Tapes TPStart
Stop UT LST EL AZ HA UP ParA Dwell (see above)
----------------------------------------------------------------------------------------

--- Thu 23 Aug 2001 Day 235 ---

Next scan frequencies: 4800.00 4816.00
Next BBC frequencies: 700.00 716.00
Next scan bandwidths: 16.00 16.00

18 00 00 J0403+26 01 03 37 18.0 41.8 -3.0 -140.9 0 1 1 52 18 00 00
19 00 00 --- 02 03 47 25.5 29.7 -2.0 -152.1 3600 F 1 1312

19 00 00 J0403+26 02 03 47 25.5 29.7 -2.0 -152.1 -2 1 1 1312 19 00 00
20 00 00 --- 03 03 57 30.4 15.4 -1.0 -165.4 3598 F 1 2572

20 01 50 J0204+15 03 05 47 40.7 -19.5 1.0 162.9 56 1 1 2611 20 01 50
20 07 00 --- 03 10 58 40.3 -21.1 1.1 161.5 310 F 1 2719

20 08 50 J0403+26 03 12 48 30.9 13.2 -0.8 -167.5 57 1 1 2758 20 08 50
21 00 00 --- 04 04 07 32.1 -0.2 0.0 179.8 3070 F 1 3832

21 00 00 J0403+26 04 04 07 32.1 -0.2 0.0 179.8 -2 1 1 3832 21 00 00
22 00 00 --- 05 04 17 30.3 -15.9 1.0 165.0 3598 F 1 5092

22 00 00 J0403+26 05 04 17 30.3 -15.9 1.0 165.0 -2 1 1 5092 22 00 00
22 18 00 --- 05 22 20 29.1 -20.4 1.3 160.8 1078 F 1 5470

22 19 50 J0423-01 05 24 10 56.3 -28.2 1.0 156.3 67 1 1 5509 22 19 50
22 25 00 --- 05 29 21 55.7 -30.3 1.1 154.6 310 F 1 5617

23 25 00 J0530+13 06 29 31 42.5 -19.4 1.0 163.1 3578 1 1 5672 23 25 00
23 30 00 --- 06 34 31 42.1 -21.0 1.1 161.7 300 F 1 5777

--- Start: Thu 23 Aug 2001 Day 235 -- Stop: Fri 24 Aug 2001 Day 236 ---

23 31 50 J0403+26 06 36 22 21.6 -36.8 2.6 145.5 77 1 1 5816 23 31 50
00 55 00 --- 07 59 45 9.2 -51.4 3.9 132.4 4990 F 1 7562


SETUP FILE INFORMATION:
NOTE: If DOPPLER, FREQ, or BW were used, see the individual scans for the final BBC settings.


Setup file: /home/sched/short-term/progs/current/setups/vsop4800_s2.set
Matches group cd6cm in /home/sched/short-term/progs/current/catalogs/freq.dat

Setup group: 3 Station: CEDUNA Total bit rate: 128
Format: S2 Bits per sample: 2 Sample rate: 32.000
Number of channels: 2 Passes/head pos: 1 Speedup factor: 1.00

Tape speeds: Low density - 6.300 ips, High density - 4.20 ips
Time per pass for 7600 ft, High density tapes is: 06:01:54

1st LO= 4100.00 4100.00
Net SB= U U
Pol. = LCP LCP
BBC = 1 3
BBC SB= U U
IF = C C

The following frequency sets based on this setup were used.

Frequency Set: 2 Setup file default. No pcal detection.
LO sum= 4800.00 4816.00
BBC fr= 700.00 716.00
Bandwd= 16.000 16.000

Track assignments are:
track1= 0, 0
barrel=roll_off
 SOURCE LIST -- VSOP observation of J0403+26 at 5 GHz
Catalog positions marked with *.
Precession of date coordinates is based on stop time of first scan.
Names used in schedule marked with *.
Short names used in VLA and SNAP files marked with +.
Observation date used in B1950/J2000 coordinate conversion (PRECDATE): 1979.900
No adjustments are made for rates (DRA, DDEC).

Source Source position (RA/Dec)
(B1950) (J2000) (Date)

J0204+1514 02 02 07.396238 * 02 04 50.413906 02 04 55.336128
0202+149 14 59 50.93914 * 15 14 11.04336 15 14 36.04874
* J0204+15 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998

J0403+2600 04 00 03.594816 * 04 03 05.586047 04 03 10.355289
0400+258 25 51 46.48916 * 26 00 01.50303 26 00 12.39115
* J0403+26 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998

J0423-0120 04 20 43.539852 * 04 23 15.800729 04 23 19.673337
0420-014 -01 27 28.70013 *-01 20 33.06543 -01 20 14.77550
* J0423-01 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998

J0530+1331 05 28 06.759217 * 05 30 56.416748 05 31 00.373623
0528+134 13 29 42.28881 * 13 31 55.14948 13 32 01.23018
* J0530+13 /home/sched/short-term/progs/current/catalogs/sources.vlba
USNO - Ref Frame 1998-6, Eubanks June 1998



The solar corona can cause unstable phases for sources too close to the Sun.
SCHED provides warnings at individual scans for distances less than 10 degrees.
The distance from the Sun to each source in this schedule is:
Source Sun distance (deg)
J0204+15 116.5
J0403+26 87.0
J0423-01 87.3
J0530+13 68.3

Barry Clark estimates from predictions by Ketan Desai of IPM scattering sizes
that the Sun will cause amplitude reductions on the longest VLBA baselines
at a solar distance of 60deg F^(-0.6) where F is in GHz.
For common VLBI bands, this is:
327 MHz 117. deg
610 MHz 81. deg
1.6 GHz 45. deg
2.3 GHz 36. deg
5.0 GHz 23. deg
8.4 GHz 17. deg
15.0 GHz 12. deg
22.0 GHz 9. deg
43.0 GHz 6. deg